Speed-indicator for velocipedes, &amp;c.



PATENTED' JULY 30, 1907.

J. B. WINTER. SPEED INDICATOR FOR VELOUIPEDES, &0.

APPLICATION FILED JAN .26,1904.

2 SHEETS-SHEET 1.

'a my WITN ESOES J. B. WINTER.

SPEED INDICATOR FOR VELOGIPEDES, 6w.

APPLIUATION FILED JAN.26,1904.

PATBNTBD JULY 30, 1907.

2 SHEETB-SHEET 2.

wl'rnusn 4 y SPEED-INDICATOR FOR VELOCIPEDES, &c.

Specification of Letters Patent.

Patented July 30, 1907.

Application filed January 25,1904=. Serial No. 190,478.

To all whom it may concern:

Be it known that 1, JOHN BRADBURY WINTER, a subject of the King of Great Britain and Ireland, residing at 28 Montpelier road, Brighton, in the county of Sussex, England, have invented certain new and useful Improvements in Speed-Indicators for Velocipedes and other Vehicles, of which the following is a specification, (for which I have applied for patents in Great Britain, filed 5th January, 1904; France, filed 5th January, 1904, and Belgium, filed 5th January, 1904.

In the specification to British Patent No. 5633 of 1899, there is described a speed indicator in which the nave of a vehicle wheel of known diameter is connected to a wheel of the indicating instrument through suitable gearing so that this wheel will revolve at a speed proportional to that of the vehicle. In the instrument is a clockwork driven by a spring and controlled by an escapement or a flier so as to operate for a given time, say a few seconds. When the clockwork is released, which may be effected automatically at every revolution of the geared wheel or of a spindle geared thereto, an index is for the time connected to the geared wheel and moves with it while the clockwork continues to operate during the pie-determined time at the end of which the index is disconnected from the geared wheel and remains stationary pointing to a division on a dial corresponding to the average speed of the vehicle during the time of operation of the clockwork.

The present invention relates to improvements in the apparatus above referred to by which its efficiency is increased and its construction simplified as will be described with reference to the accompanying drawings, in which Figure 1 is a front elevation with the frame or casing removed; Fig. 2 is a side elevation; Fig. 3 a section on line 3-3 of Fig. 1. Fig. 4 is a rear elevation, and Fig. 5 a section on the central line of Fig. 2 looking from the right.

Within anouter frame consisting of two circular disks a connected by pillars a a? a is another frame consisting of two plates 1) connected by two pillars b Ii", and mounted on a spindle c which is journaled in the plates a.

J ournaled centrally in the face plate a which constitutes the dial plate of. the instrument is a spindle (Z which extends inwards to and is journaled in a cock 0 fixed to the face plate, and carries on its outer end a pointer or index d which traverses the dial on the face plate. In line with the spindle d is another spindle f which is journaled in one of the inner plates 1) and in a cock f fixed to that plate, and on which is fixed a toothed wheel g. A pin g projects from the wheel 9 so as to encounter a lever g fixed to the inner end of the spindle (1 when either of the spindles, (Z, f,

revolves. On the spindle f there is also fixed a disk h having a small tooth or projection h at one point of its periphery in the path of which is a pin k projecting from the inner frame and thus limiting the rotation of the spindle f.

Fixed on the spindles (Z, f, respectively are pinions 7:, i, with which are geared the toothed segments 7;, it" pivoted respectively in the outer and inner frames. A tension spring k connects the outer end of the segment is with the pillar with the result that the inner frame is rocked on the spindle c, as shown in Fig. 1, and also the pinion t", with which the segment is is geared, and with it the shaft f, is rotated until the tooth h on the disk It encounters the pin If which projects from the plate I). The segment it is connected by a similar spring it with an arm Z fixed on a rocking shaft 1 which is journaled in the outer frame and carries a bent lever one arm in of which is caused by the spring to bear on a disk In fixed on the spindle (1 with suflicient friction to cause the lever g to remain in any position in which it may be left by the pin g.

On a spindle n journaled in the inner frame is a spur wheel a which gears with a pinion 0 fixed on a spindle 0 which is journaled in the fixed or outer frame and is driven in any suitable manner from the wheel of the vehicle preferably through a ratchet and pawl o'- the ratchet being mounted on the spindle 0 so as to prevent the instrument from being driven backwards. Loosely mounted on the spindle n is a slotted disk '7) carrying a pin p, the disk being arranged to be clamped to the wheel a in any desired position within the limits of adjustment by means of a clamping nut p This adjustment is for the purpose of varying the position of the pin 7%, and thereby controlling the time of its action for the purpose hereinafter described. The spur wheel a gears with a pinion g which is fixed on a spindle q journaled in the inner frame on which also is fixed an escapemcnt wheel q-, the pallets of which are fixed on a spindle carrying a heavy disk 1'. When the wheel n driven by the gear wheel 0 is made to revolve clockwise it winds a spring S (see Fig. 3) on the spindle n. A pin 1" projecting from the spindle it moves a lever s which is freely pivoted on the spindle 0 so as to bring a projection s on the lever into engagement with an arm L rigidly fixed on the spindle c. A second arm t fixed on the same spindle is normally urged by a spring T on the spindle to abut against the edge of the disk h and act as a brake. When the arm t is moved by the lug or projection s the brake L is released and the wheel g is caused by the segment It" under the tension of its spring to fly round until the tooth h on the disk It encounters the stop 7L2 projecting from the inner frame. As the pin 1" continues its revolutions, the arm t is drawn down until its end clears the shoulder a (Fig. 5), on a pivoted arm a. This arm a is urged by a spring U on its pivot into con tact with the arm t. The pin 1" then slips past the lever 8, and the spring T on the spindle c, (which has been wound up by the movement of the arm 25) throws the arm 15 into locking contact with the arm a. This prevents further movement of the shaft 0, and the spring T new acts to turn the inner frame about the axis of the spindle 0, thereby engaging the wheel g with, the wheel 0, and disengaging wheels n and 0. The rotation of the wheel 0 is now communicated to the wheel 9 and the pin g encounters the arm 9 on the spindle (Z and turns the index (1 round the dial. ltleanwhile the clock spring turns the wheel 11 in the reverse direction the rotation being regulated by the escapement which is geared to the wheel a through the pinion (1. When the pin 3) meets the end of the arm 'Lt it deflects this arm so as to release the arm t and allow the arm L to spring against the brake disk It and hold it firmly. At the same instant since the spring on the spindle e no longer reacts jointly on the inner and outer frames, the former is returned by the action of the spring attached to the pillar a into its original position with the wheels 0 and n in gear. The spring If acts in this manner because it is connected to the segment 1;, which is pivoted to and carried by the inner frame. At this time, the said segment is held against movement on its pivot because the engagement oi the brake-arm t with the brake-disk It prevents rotation of the shaft f with the pinion t" of which the segment meshes. The wheel 0 now begins to turn the wheel n and rewind the clock spring. The pin 1 encountering the arm s causes the release of the brake t and the wheel g returns to its zero position that is, the position in which the tooth h on the disk 71 encounters the stop it projecting from the inner frame. The index (1 however remains stationary on account of the pressure of the arm m on the disk m. As the pin 1" slips past the end of the arm 8 and the arm t is caught by the shoulder of the arm n the inner frame again rotates throwing the wheel 9 into gear with the wheel 0 and withdrawing the pin 1 out of reach oi the arm m of the bent lever the other end of which is arranged to bear on the disk m. If it be assumed that the speed is now less than during the previous record, the wheel 9 does not turn through as great an angle as before and the pin 9 does not reach the pin g on the spindle d before the inner frame again swings back to the position shown in Fig. 1. When in this position, the pin 1" as it re volves touches the arm in of the bent lever and raises the other arm m off the disk m and the spindle (Z is brought back by the segment is and its controlling spring until the pin g strikes the pin g on the wheel g. When the pin '1" passes the arm m of the bent lever the other arm at presses on thedisk m. The pressure is however very light, and when a greater speed has to be recorded the pin g on the center wheel g turns the spindle (Z further round in spite of the pressure on the disk m For the sake of clearness the spindle ol' the sector 7; and also its spring are omitted from Fig. 2 ol' the drawings.

1. In speed indicators of the class described, an index shaft, .a vehicle driven shaft. intcrmei'liate gearing for operating the index shaft from the driven shaft, said gearing including a brake-wheel or disk, a brake arm cooperating therewith, means for checking said brakeavheel or disk at a pre-determined point, and spring and gear means for con trolling the brake; substantially as described.

In a speed indicator of the class described, an index shaft, means for holding said shaft in a relatively tixed position, a vehicle driven shaft, .L spring arranged to be wound from said shaft, intermediate gearing l'or actuating the index shaft, and a brake device for said gearing, controlled in part by the spring and in part from the drum axle; substantially as described.

3. In a speed indicator of the class described, a relatively lixed frame, an index shaft journaled therein, a vehicle driven shaft also journaled therein, and carrying a gear, a movable inner frame having gearing for actuating the index shaft and also a gear wheel which is arranged to engage in one position, the index shaft actuating ear ing. and in another position, to engage the vehicle driven ar, means for causing the movement of the inner frame to shift the engagement of said gear, and brake means for the index shaft operating gear substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

.TOI'IN BRADBURY \VIN'IIGII.

Witnesses M. Bnnenss, I l. Ilnrxnnnr. 

